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https://issues.apache.org/jira/browse/CASSANDRA-14909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dinesh Joshi reassigned CASSANDRA-14909:
----------------------------------------
Assignee: Sumanth Pasupuleti
> Netty IOExceptions caused by unclean client disconnects being logged at INFO
> instead of TRACE
> ---------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-14909
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14909
> Project: Cassandra
> Issue Type: Bug
> Reporter: Sumanth Pasupuleti
> Assignee: Sumanth Pasupuleti
> Priority: Minor
> Fix For: 4.0
>
>
> Observed spam logs on 3.0.17 cluster with redundant Netty IOExceptions caused
> due to client-side disconnections.
> {code:java}
> INFO [epollEventLoopGroup-2-28] 2018-11-20 23:23:04,386 Message.java:619 -
> Unexpected exception during request; channel = [id: 0x12995bc1,
> L:/xxx.xx.xxx.xxx:7104 - R:/xxx.xx.xxx.xxx:33754]
> io.netty.channel.unix.Errors$NativeIoException: syscall:read(...)() failed:
> Connection reset by peer
> at io.netty.channel.unix.FileDescriptor.readAddress(...)(Unknown
> Source) ~[netty-all-4.0.44.Final.jar:4.0.44.Final]
> {code}
> {code:java}
> INFO [epollEventLoopGroup-2-23] 2018-11-20 13:16:33,263 Message.java:619 -
> Unexpected exception during request; channel = [id: 0x98bd7c0e,
> L:/xxx.xx.xxx.xxx:7104 - R:/xxx.xx.xx.xx:33350]
> io.netty.channel.unix.Errors$NativeIoException: readAddress() failed:
> Connection timed out
> at io.netty.channel.unix.Errors.newIOException(Errors.java:117)
> ~[netty-all-4.0.44.Final.jar:4.0.44.Final]
> at io.netty.channel.unix.Errors.ioResult(Errors.java:138)
> ~[netty-all-4.0.44.Final.jar:4.0.44.Final]
> at
> io.netty.channel.unix.FileDescriptor.readAddress(FileDescriptor.java:175)
> ~[netty-all-4.0.44.Final.jar:4.0.44.Final]
> at
> io.netty.channel.epoll.AbstractEpollChannel.doReadBytes(AbstractEpollChannel.java:238)
> ~[netty-all-4.0.44.Final.jar:4.0.44.Final]
> at
> io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:926)
> ~[netty-all-4.0.44.Final.jar:4.0.44.Final]
> at
> io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:397)
> [netty-all-4.0.44.Final.jar:4.0.44.Final]
> at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:302)
> [netty-all-4.0.44.Final.jar:4.0.44.Final]
> at
> io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
> [netty-all-4.0.44.Final.jar:4.0.44.Final]
> at
> io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
> [netty-all-4.0.44.Final.jar:4.0.44.Final]
> {code}
> [CASSANDRA-7849|https://issues.apache.org/jira/browse/CASSANDRA-7849]
> addresses this for JAVA IO Exception like "java.io.IOException: Connection
> reset by peer", but not for Netty IOException since the exception message in
> Netty includes method name.
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